"Shiori Ookouchi is a prominent character in the manga ""My Wife is Back"". She is a successful businesswoman who is known for her remarkable talent and intelligence. Shiori is a charming and confident woman who is hailing from a wealthy family and holds a high position in a leading company.

Shiori is introduced in the story as the ex-girlfriend of the protagonist, Tetsuya Mirai. Despite their past relationship, the two of them have drifted apart and have not maintained contact. However, their lives intersect once again when Tetsuya's deceased wife, Mizuki, comes back to life and returns to him as an android.

Throughout the story, Shiori is depicted as a strong-willed and independent woman who is not afraid to speak her mind. She is a shrewd businesswoman who has worked hard to make a name for herself in the corporate world. At the same time, she still harbors feelings for Tetsuya, which complicates their relationship further.

Shiori's intelligence and resourcefulness are shown when she offers to help Tetsuya with his business endeavors. Despite their past, she still cares for him and wants him to succeed. She also plays a key role in the latter part of the story when the android Mizuki malfunctions and poses a danger to those around her. Shiori uses her knowledge and experience to devise a solution to the problem and helps Tetsuya save Mizuki.

Overall, Shiori Ookouchi is a fascinating character in ""My Wife is Back"". Her confident and ambitious personality make her stand out in a story where most characters are struggling to find their place in the world. Despite her flaws and complicated relationship with Tetsuya, she proves to be a valuable ally and friend in times of need."